gradine
/ɡrəˈdiːn
/(also gradin /ˈɡreɪdɪn/)
noun archaic
A low step or ledge, especially one at the back of an altar.The mid-century gradins - bleachers where children were seated for hours - gave way to classrooms with furniture more appropriately sized.
Origin
Mid 19th century: from Italian gradino, diminutive of grado 'step'.